Contrasting source domains for the Phanerozoic granitoids in South Korea revealed by zircon Hf isotopic signatures

doi:10.1007/s12303-016-0028-7

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Contrasting source domains for the Phanerozoic granitoids in South Korea revealed by zircon Hf isotopic signatures
	Lee, Seung Ryeol 1; Cho, Deung-Lyong 1; Wu, Fu-Yuan 2
刊名	GEOSCIENCES JOURNAL
	2016-10-01
卷号	20 期号:5 页码:585-596
关键词	Korean Peninsula Zircon Hf Isotope Phanerozoic Granitoids Precambrian Basement Subduction-related Magmatism
DOI	10.1007/s12303-016-0028-7
文献子类	Article
英文摘要	In situ zircon Hf isotopic analysis was conducted to investigate the characteristics of source materials responsible for generations of the Phanerozoic granitoids in South Korea. The Hf isotopic data compiled from the literature together with this study revealed two principal types of source materials governing the generation of the Permo-Triassic granitoids. One type corresponds to long-lasting, ancient lithospheric materials having highly negative EEO values of 24.3 to 18.6 and is temporally equivalent to the Paleoproterozoic to Neoarchean basement rocks prevalent in South Korea. This type is a primary source material for the Triassic postorogenic granitoids in the Gyeonggi massif The other type corresponds to juvenile materials accreted by Late Paleozoic continental arc magmatism. This relatively young crust occurs largely in and around the Gyeongsang basin. Systematic southeastward increase in epsilon Hf(t) values of both Permo-Triassic and Jurassic granitoids indicates enhanced contributions of juvenile materials toward the paleo-trench. Such a trend is best explained by the chemical mixing of two principal types of source. Northern limit of chemical interactions between ancient and juvenile components is inferred to lie along the central Okcheon belt during the Permo-Triassic. However, this boundary has shifted southeastward in Jurassic to be defined by the Sunchang Yecheon shear zone, a part of the Honam Shear Zone. The arc-related juvenile crust was also a principal source for the Cretaceous-Paleogene granitoids in the Gyeongsang basin.
WOS关键词	NEOPROTEROZOIC BIMODAL VOLCANISM ; NORTHEASTERN YEONGNAM MASSIF ; U-PB AGES ; TECTONIC IMPLICATIONS ; CRUSTAL EVOLUTION ; GYEONGGI MASSIF ; ARC MAGMATISM ; OGCHEON BELT ; LU-HF ; INDOSINIAN OROGENY
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000384518800001
资助机构	Basic Research Program of Korea Institute of Geoscience and Mineral Resources (KIGAM)(15-3116) ; Basic Research Program of Korea Institute of Geoscience and Mineral Resources (KIGAM)(15-3116) ; Basic Research Program of Korea Institute of Geoscience and Mineral Resources (KIGAM)(15-3116) ; Basic Research Program of Korea Institute of Geoscience and Mineral Resources (KIGAM)(15-3116)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53342]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.Korea Inst Geosci & Mineral Resources, Div Geol Res, Daejeon 34132, South Korea 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Lee, Seung Ryeol,Cho, Deung-Lyong,Wu, Fu-Yuan. Contrasting source domains for the Phanerozoic granitoids in South Korea revealed by zircon Hf isotopic signatures[J]. GEOSCIENCES JOURNAL,2016,20(5):585-596.
APA	Lee, Seung Ryeol,Cho, Deung-Lyong,&Wu, Fu-Yuan.(2016).Contrasting source domains for the Phanerozoic granitoids in South Korea revealed by zircon Hf isotopic signatures.GEOSCIENCES JOURNAL,20(5),585-596.
MLA	Lee, Seung Ryeol,et al."Contrasting source domains for the Phanerozoic granitoids in South Korea revealed by zircon Hf isotopic signatures".GEOSCIENCES JOURNAL 20.5(2016):585-596.